function psi\abs(int $i) : int {
	let n = intval($i);
	return to_int(abs);
}

function psi\div(int $numerator, int $denominator) : array {
	let numerator = intval($numerator);
	let denominator = intval($denominator);
	return to_array(div, to_int(quot), to_int(rem));
}

function psi\ldiv(int $numerator, int $denominator) : array {
	let numerator = intval($numerator);
	let denominator = intval($denominator);
	return to_array(ldiv, to_int(quot), to_int(rem));
}

function psi\lldiv(int $numerator, int $denominator) : array {
	let numerator = intval($numerator);
	let denominator = intval($denominator);
	return to_array(lldiv, to_int(quot), to_int(rem));
}

function psi\strtold(string $str, string &$end = null) : float {
	let nptr = strval($str);
	let endptr = &NULL;
	return to_float(strtold);
	set $end = to_string(*endptr);
}

extern double pow(double x, double y);
function psi\pow2() : float {
	let x = 1 | 2;
	let y = 1 << 1;
	return to_float(pow);
}